Self-cleaning pet cock



Nov. 16,1926. 1,607,529

A. S. GRUENER SELF CLEANING PET COCK Filed July 10 1.926

Attorney Patented Nov. 16, 1926.

.ALFRED S. GRUENER, OF SCRAN'ION, PENNSYLVANIA.

SELF-CLEANING PET COCK.

Application filed July 10,

The present invention relates to valves generally, and more particularly to apetcock and has for its principal object to provide means for cleaning the passage in the body of the petcock.

Another important object of the invention resides in the provision of a cleaning means for the passage of the petcock body operable by the rotation of the plug.

Another very important object of the invention lies in the provision of an eccentric or crank on the valvefor the purpose of re ciprocating a member movable in the passage of the body of the petcock.

A still further very important object of the invention lies in the provision of a selfcleaning petcock which'is provided with exceedingly simple construction that may be manufactured at a low cost, one which is strong and durable, and eflicient andreliable in operation. 2

With the. above and numerous other objects in view as will appear asthe description proceeds, the invention resides incertain novel features of construction and in the combination and arrangement of parts as will be hereinafter more fully described and claimed.

In the drawing Figure 1 is a plan view of thepetcock enbodying the features of my invention showing the same attached to a container or the like,

Fig. 2 is a longitudinal section there.- through, and r Y i Fig. 3 is another longitudinal section thercthrough, taken on the line 33 of F 1. I

Referring to the drawing in detail, it will be seen that the numeral 5 denotes the body of the petcock having the inlet end external- 6 1y threaded as at 21 for engaging in an opening in a vessel 22 or any other device with which it may be desired to connect the petcock. This body 5 is provided with a longitudinal passage 6 and a transverse passage 7. Avalve plug 8 of frusto-conical formation is rotatably mounted in the transverse passage 7 which, as usual, is frustoconical in formation.

The valve plug 8 is provided with a transverse passage 9' which may be brought into registry ,with the passage 6 by the rotation.

' of the plug. A shank 10 extends from the smaller end of the plug and a coil spring 11 is disposed thereabout implnging against a 1926. Serial No. 121.593.

washer 12 adjacent the body 5 and a washer 13 adjacent the cotter pin 14 disposed through an opening in the outer extremity of the shank 10.

A handle 20 extends laterally from the larger end of the plug exteriorly of the body and a stop lug 26 extends from the larger end of the plug in an opposite direction to the handle 20. Stop shoulders 24 and 25 are provided on the body 5 approximately diametrically opposed for being engaged by the lug 26.

Thus far, the plug is more or less conven- 'tional and well known in this art. My improvements consist in v the provision of a groove 15 in the plug 8 so as to provide an eccentric 0r crank pin 16 and further in the provision of a longitudinally extending groove 23 communicating with the groove 15. A cleaning member is formed from a strand of wire or the like bent over upon itself intermediate its ends to provide a loop 17 circumjacent the crank pin 16 while the ends are twisted about each other to form a shank 18 that extendsthrough the passage 6 out through the end 21.

It will therefore be seen that upon rotation of the plug the member 17, 18- will be recip-v rocated back and forth through thepassage 6 and the end 21, for maintaining the same clean and preventing the same from being clogged as frequently happens with petcocks, owing to sediment and the like in the bottom of a tank or container such as i. fragmentarily illustrated at 22. I

' The groove 15 is disposed to one sideof the passage 6 so that the petcock will not leak, when closed. The stop shoulders 24 and'25 and the stop luga-re positioned so as to prevent the groove 26 approaching the outlet end of the passage 6.

In assembling this petcock, the wire is.

first engaged with the'crank 16 as hereto fore indicated and the shank is bent so as to extend longitudinally in the groove The plug may then be inserted in the larger end of the transverse passage 7 and the free end of theshank guided up through the inlet end'of the passage 6, while the plug is being inserted in place. The Washers 12 and 13 and the spring 11 may be assembled on the shank 10 in the usual manner and held in place through the cotter pin 14:.

In-Fig. 1, the handle 20 is disposed so that the valve plug closes the passage 6. To

obtain the maximum efficiency in operating this petcock, 21 be swung first a quarter turn in a clockwise direction and then be swung a full half turn in a counter clockwise direction, during which movements the member 17, 18 moves inwardly a short distance and then outwardly twice the distance, and then when the plug is rotated to a closed position it moves in to the initial position. Thus, the advantage of the full stroke is attained. Of course, it is not necessary that the valve be operated in this manner to obtain the ethciency, as any movement of the valve plug will impart movement to the cleaning member.

It is thought that the construction, operation, utility, and advantages of this invention will now be clearly understood by those skilled in this art without a more detailed description. It is apparent that the present embodiment of the invention has been disclosed merely by way of example since in actual practice it has attained the features of advantage enumerated as desirable in the statement of the invention in the above de-.

scription.

Numerous changes in the details of construction, and in the combination and arrangement of parts may be resorted to as to not depart from the spirit and scope of the invention as hereinafter claimed.

Having thus described my invention, what I claim as new is 1. A valve comprising a body having a passage therein, a rotatable valve plug mounted in the body and extending across the passage, a rod in the passage, and means for engaging the rod with the plug eccentrically of its axis so that the rod will be moved longitudinally in the passage upon the rotation of the plug for the purpose of cleaning the passage and preventing the same from becoming clogged up.

2. In a petcock; wherein the petcock includes a body having a passage, and a valve plug mounted for rotation in the body across the passage; a member in the passage, an eccentric on the plug, and means for connecting the member with the eccentric, whereby rotary movement of the plug will impart longitudinal movement to the member through the passage.

3. In a petcock; wherein the petcock includes a body having a passage, and valve plug mounted for rotation in the body across the passage, a crank on the plug, and a member bent over upon itself intermediate its ends to provide a loop circumjacent the crank and having its end portions twisted about one another to form a shank ex it is desirable that the handle tending through the passage, whereby the rotation of the plug will impart longitudinal movement of the member through the passage.

4. In a petcock; wherein the petcock includes a body having a passage, and a valve plug mounted for rotation in the body across the passage; said plug being formed with a peripheral groove to form an eccentrically disposed pin and provided with a longitudinal groove on its periphery communicating with the first groove, and a bendable member having a loop circumja cent the pin whereby the member may be bent to extend through the second groove for permitting the insertion of the plug in the body, and whereby when the plug is rotated in the body the member moves longitudinally through the passage.

5. In a petcock; wherein the petcock includes a body having a longitudinally extending passage and a transversely extending passage across the longitudinally eX- tending passage, said transverse passage being frusto-conical, a valve plug of frustoconical formation insertible in the transverse passage for rotation therein, and provided with a co-aXially extending shank at its smaller end, and means associated with said shank and said body for holding said plug in place in said transverse passage; said plug being provided with an annular peripheral groove forming an eccentric pin and with a longitudinally extending groove communicating with the first groove, a member of bendable material bent over upon itself intermediate its ends to form a loop circumjacent the pin and having its end portions twisted about each other to provide a relatively stiff shank eXtendable through the first-mentioned passage.

6. In a petcock; wherein the petcock includes a body having a passage, and a valve plug mounted for rotation in the body across the passage; said plug being provided with a peripheral annular groove forming an eccentric pin, and a longitudinal peripheral groove communicating with the annular groove, a bendable member having a portion engaged with the pin and normally extending through the passage but capable of being bent to extend through the longitudinal groove while the plug is being inserted in the body, and. means associated with the plug for limiting the rotation thereof so that the longitudinal groove is prevented from approaching the outlet end of the body.

In testimony whereof I afiix my signature.

ALFRED S; GRUENER. 

